Cook the noodles
Boil spaghetti or linguine according to package directions until al dente. Drain and set aside.
Make the sauce
In a small bowl, whisk together soy sauce, vinegar, brown sugar, chili garlic sauce, and cornstarch until smooth. Set aside.
Cook the chicken
Heat a large skillet or wok over medium-high heat. Add sesame oil and cubed chicken. Stir-fry for 5–7 minutes until cooked through and lightly golden.
Add aromatics
Stir in minced garlic and dried chili peppers. Cook for about 2 minutes until fragrant and the peppers soften slightly.
Combine with sauce
Pour the prepared sauce into the pan. Stir well and let it cook for 1–2 minutes, until the sauce thickens and coats the chicken.
Finish the dish
Add the cooked noodles and peanuts. Toss everything together until evenly coated in the sauce.
Garnish with chopped green onions and a sprinkle of red pepper flakes for extra heat. Enjoy warm!
